China to pose bigger biological warfare, nuclear weapons threats due to Donald Trump's Nvidia H200 move, warn US experts

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Map shows how devastating a nuclear attack on the US would be

In 1958, the United States conducted a series of nuclear tests known as Operation Hardtack I in the Pacific Ocean, aimed at studying the effects of atomic explosions in different environments. Among the most striking was an underwater detonation at Enewetak Atoll in the Marshall Islands, where a nuclear device was exploded beneath the surface to observe how water, shock waves, and radiation would behave in a marine setting. The blast created a towering column of water thousands of feet high and

The Environmental Effects of Nuclear Radiation | Britannica